 The 1875 article described that within two years he produced about two pianos a week, and moved to larger premises at 139 Centre Street.Lindeman was awarded diplomas at the 1847 and 1848 American Institute fairs, placing after piano makers James Pirsson, and Senior & Grovesteen, both of New York, in 1847 and J. H. Schomacker & Co., of Philadelphia, and behind J. H. Grovesteen and D. J. Winkle of New York the following year.In 1849, Lindeman made Herman a partner, and the firm moved to 56 Franklin street.